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True Blue Power® products are sold to qualified avionics/instrument shops, FAA repair stations, fixed base operators (FBOs) and original equipment manufacturers (OEMs).

True Blue Power is a division of Mid-Continent Instrument Co., Inc. True Blue Power products can be purchased through Mid-Continent’s online shopping tool at www.mcico.com. Click continue to be directed to the mcico.com purchasing page.

If you are not a business, please contact your local avionics dealer and ask for a True Blue Power product.



TC120 Series

DC-to-DC Converter

The highly efficient TC120 Series DC-to-DC Converter produces 120 watts of power from an aircraft’s 28 VDC input. Engineered to run cooler and featuring a fanless design, the TC120 saves energy and reduces weight. It produces enough energy to power electronic equipment throughout the aircraft, including lighting and cabin accessories. View all Voltage Converters Buy Now


  • Supplies 120 watts of DC power
  • Adjustable 5 – 18 VDC output
  • Compact design
  • Lightweight — 0.65 lbs
  • Input transient, overload and short circuit protection, temperature monitoring, reverse polarity
  • 95% efficient
  • Remote On/Off (optional)
  • Designed and built in Wichita, Kansas, USA
  • Two-year limited warranty


  Product Comparison
Model Number TC120   True Blue Power TC240
Part Numbers 6430120-1
6430120-2 (remote on/off included)
6430240-2 (remote on/off included)
Input Voltage 24 – 32 VDC 24 – 32 VDC
Input Current 5.0 A Nominal 10.0 A Nominal
Output Voltage 5 – 18 VDC adjustable 5 – 18 VDC adjustable
Output Power 120 watts 240 watts
Regulation 1% load, 2% temperature 1% load, 2% temperature
Weight 0.65 lbs (0.29 kg) 0.70 lbs (0.32 kg)
Altitude 55,000 ft 55,000 ft
Temperature -67°F to +158°F (-55°C to +70°C) -67°F to +158°F (-55°C to +70°C)
Mating Connector 6430120-1, -2
MCI P/N 9018651 (included)

MCI P/N 9018654 (included)

MCI P/N 9018655 (included)
Case Anodized aluminum, blue Anodized aluminum, blue
Certification FAA TSO C71 certified
RTCA DO-160G qualified
FAA TSO C71 certified
RTCA DO-160G qualified


Voltage Converter Comparison Chart

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